Wired Style only supports the use of the in-car connection cigar lighter, wireless type dual use in car and home.

Wireless type it is better to use full charge for the first time (used at non-rechargeable).

Rechargeable the difference between double-cell and single-cell batteries:

the double section is 7.4V voltage. Single section is 3.7V voltage. Both suction and endurance sections are better than single sections. Single section is suitable for drainage, basic style, gift channel.